html,
        body {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
        }

        body {
            background-color: #000;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;

        }

        #app {
            width: 400px;
            height: 500px;
            /* background-color: #fff; */
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-direction: column;
        }

        .my-cube {
            height: 200px;
            width: 200px;
            transform-style: preserve-3d;
            transform-origin: 50% 50% -100px;
            position: relative;
            /* animation: rotate 5s linear infinite; */
            /* 赛贝尔曲线 cubic-bezier 回弹 */
            transition: all 1s cubic-bezier(.2, -1, .2, 2);
            /* transform: rotateX(30deg) rotateY(30deg) rotateZ(30deg); */
        }

        .my-cube>.cube {
            height: 100%;
            width: 100%;
            background-position: 50% 50%;
            background-size: auto 100%;
            position: absolute;
            box-shadow: 0 0 10px 2px rgb(241, 146, 21);
        }

        .cube-1 {
            top: 0;
            left: 0;
        }

        .cube-2 {
            top: 0;
            left: -100%;
            transform-origin: right;
            transform: rotateY(-90deg);
        }

        .cube-3 {
            top: 100%;
            left: 0;
            transform-origin: top;
            transform: rotateX(-90deg);
        }

        .cube-4 {
            top: 0;
            left: 100%;
            transform-origin: left;
            transform: rotateY(90deg);
        }

        .cube-5 {
            top: -100%;
            left: 0;
            transform-origin: bottom;
            transform: rotateX(90deg);
        }

        .cube-6 {
            top: 0;
            left: 0;
            transform: translateZ(-200px) rotateZ(180deg);
        }

        @keyframes rotate {
            0% {
                transform: rotateX(0) rotateY(0) rotateZ(0);
            }

            100% {
                transform: rotateX(360deg) rotateY(360deg) rotateZ(360deg);
            }
        }

        .selector-cube {
            display: flex;
            justify-content: space-around;
            align-items: center;
            flex-wrap: wrap;
        }

        .selector-cube>.cube {
            height: 100px;
            width: 100px;
            background-position: 50% 50%;
            background-size: auto 100%;
            margin: 10px 0;
            border: 4px solid #fff;
            border-radius: 5px;
            cursor: pointer;
        }

        .selector-cube>.cube.active-cube {
            border-color: rgb(241, 146, 21);
            box-shadow: 0 0 10px 2px rgb(241, 146, 21);
        }